[Machine] Imam Al-Shafi'i said, "The adhan (call to prayer) is not to be called for any prayer other than Fajr (dawn prayer) except after its designated time, because I did not know of anyone who narrated that the Prophet ﷺ called the adhan for a prayer before its time, other than Fajr. And we have not seen the Mu'adhdhins (callers of adhan) among us calling the adhan except after the entry of its time, except for Fajr."  

قَالَ الشَّافِعِيُّ لَا يُؤَذَّنُ لِصَلَاةٍ غَيْرِ الصُّبْحِ إِلَّا بَعْدَ وَقْتِهَا لِأَنِّي لَمْ أَعْلَمْ أَحَدًا حَكَى عَنْ رَسُولِ اللهِ ﷺ أَنَّهُ أَذَّنَ لِصَلَاةٍ قَبْلَ وَقْتِهَا غَيْرَ الْفَجْرِ وَلَمْ نَرَ الْمُؤَذِّنِينَ عِنْدَنَا يُؤَذِّنُونَ إِلَّا بَعْدَ دُخُولِ وَقْتِهَا إِلَّا الْفَجْرَ